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【单选题】
已知非零向量 满足 ０，向量 的夹角为 ，且 ，则向量 与 的夹角为A.
B.
C.
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举一反三
【单选题】In 2012, the top 5 agricultural commodities of America are ( ), cattle, soybeans, dairy products and chickens for meat.?
A.
Corn
B.
Potato
C.
Tomato
D.
Cotton
【单选题】Now when people refer to England you find Wales _______ as well. [ ]
A.
being included
B.
include
C.
including
D.
included
【简答题】从下面提供的答案中选出应填入下列英文语句中______内的正确答案。 When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user (1) . In practice, the two media ar...
【简答题】设f(x)为连续函数， ，则I的值( )． (A) 依赖于x，y，z (B) 只依赖于y，z (C) 只依赖于y (D) 只依赖于z
【单选题】When most people refer to multimedia, they generally mean the combination of two or more continuous media, usually with some user(115). In practice, the two media are normally audio and video, this is...
A.
display
B.
games
C.
help
D.
interaction
E.
pictures
【简答题】When people refer to family in America ,
generally speaking, they mean___________, that is, a family unit that consists
of a father, mother, and unmarried children.
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